ICD-10-CM 2027 diagnosis code
R26Abnormalities of gait and mobility
R26 is a header code, so it can't be reported by itself. Choose one of the 5 more specific codes beneath it.
Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About R26
R26 is the ICD-10-CM diagnosis code for abnormalities of gait and mobility. It belongs to block R25-R29 (symptoms and signs involving the nervous and musculoskeletal systems) and chapter 18 (symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified). It is a header code, so it can't be reported by itself; one of its 5 subcodes must be used instead.
To report this condition, pick the subcode that matches the documentation: R26.0 (gait), R26.1 (gait), R26.2 (classified), R26.8 (mobility) and R26.9 (mobility).
Don't report R26 together with the conditions in its Excludes1 note: ataxia NOS (R27.0), hereditary ataxia (G11.-), locomotor (syphilitic) ataxia (A52.11) and immobility syndrome (paraplegic) (M62.3).
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
Specific codes under R26
Coding notes
Notes that apply from higher levels
Instructions written at a parent level also apply to R26.
Broader instructions also apply from Chapter 18: Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified.
Codes whose notes reference R26
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about R26
Is R26 billable?
- No. R26 is a header code. Report one of its more specific subcodes instead.